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Salary
≈ $60k – $143k per year (Estimated)
Location
In office (Round Rock)
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 13, 2026. First seen by Alion on Oct 5, 2026.

Overview
Company
Impact
Profile match
Entegris is a specialty materials and process solutions company headquartered in Billerica, Massachusetts, supplying the semiconductor industry with specialty chemicals, CMP slurries and cleaning solutions, deposition precursors, filtration, fluid handling and wafer carriers. Listed on Nasdaq and enlarged by its 2022 acquisition of CMC Materials, it runs manufacturing and technology sites across the United States, Taiwan, South Korea, Japan, Malaysia, Singapore and France. It hires manufacturing and process technicians, chemical and machine operators, manufacturing, reliability and product development engineers, lab technicians, scientists and supply chain staff.

Job Title:

Mechanical Engineer Co-Op

Job Description:

Here at Entegris, we use advanced science to enable technologies that transform the world, and we are seeking employees who have the drive to continue the mission.

THE ROLE

Our site in Round Rock, TX is seeking a/an Mechanical Engineer Co-Op to join our team for the Spring 2027 season. This assignment is intended to be 6 months in duration.

In this exciting role, the Mechanical Engineer will be responsible for assisting in developing new, high purity, solid precursor delivery system for advanced node chemistries for the semiconductor industry. The role will also develop infrastructure that supports the builds, maintenance, and quality of the delivery containers. This position will also participate in the development of 2D drawings and 3D models in SolidWorks of complex delivery systems, subassemblies, support equipment and precursor containers. The ideal candidate will exhibit the ability to manage multiple projects in a fast-paced, continuous improvement environment focused on safety, quality, and equipment reliability.

What You’ll Do

  • Coordinate project timelines with lead mechanical engineer New Product Development (NPD) management
  • Hands-on component assemblies for subassemblies and support equipment.
  • Manage change through cross-functional partnering in a global environment.
  • Develop factory infrastructure to support container builds, cleans, capacity and quality improvements.
  • Support alternative site factory build out - Entegris is building advanced deposition materials capabilities in other countries. This role will support the build out.
  • Confirm component fitment, tolerance stack up, functionality, ease of assembly and use.
  • Quote components and ordering parts directly with machine shops and outside vendors.
  • Support 2D drawings of components, subassemblies and bills of materials that are up to ASME Y14.5M-2009 standards.
  • Work with the engineering team to create new part numbers, ECRs and other support documentation.
  • Work safely and drive process improvements.
  • Create required documentation for new and modified containers and sub-components including drawings, bills of material, and part numbers.

What We Seek

  • Demonstrated experience within a global, multicultural, multi-location organization serving the semiconductor industry.
  • Introduce improvements in product performance and/or cost (value engineering).
  • Understand Materials of Construction and how they interact in contact with corrosive chemicals.
  • A fundamental knowledge of (vapor pressure, material stability, material compatibility, etc.) and thermodynamics (mass flow, etc.).
  • Experience with computational fluid dynamics (CFD) analysis and associated software.
  • Tenacity to drive projects to world class performance in a timely manner.
  • Willingness to work in a team environment.
  • Professionalism, integrity, and high degree of accountability.
  • Speed of project implementation.
  • Support teams to develop creative solutions to technical problems is essential.
  • Strong communication skills up, down, and across the organization with project teams, stakeholders, and senior leadership.

Desired Major(s) & Graduation Year

  • Mechanical Engineering
  • Graduation year 2027-2028

Eligibility

  • Must be a currently enrolled student
  • Available to work 40 hours a week, M-F (8a-5p) beginning in January through June.
  • Must be familiar with the universities requirements to participate in a co-op program

Why Work at Entegris

Lead. Inspire. Innovate. Define Your Future.

Not everyone who works for a global company shares the same background, experiences and perspectives. We leverage the differences of our employees to bring new ideas to the table. Every employee throughout the company is encouraged to share input on projects and initiatives. Our decision-making process is truly a collaborative effort as we realize there are leaders at every level of the organization. We put our values at the core of how we operate as an organization - not just when it’s convenient, but in a lasting and meaningful way. We want the time and energy you spend here to have a positive impact on your life inside and outside of the office.

What We Offer

Our total rewards package goes above and beyond just a paycheck. Whether you’re looking to build your career, improve your health, or protect your wealth, we offer generous benefits to help you achieve your goals.

  • Generous 401(K) plan with an impressive employer match
  • Excellent health packages to fit your needs
  • Flexible work schedule with paid holidays and sick time
  • Values-driven culture with colleagues that rally around People, Accountability, Creativity and Excellence

Entegris does not provide immigration-related sponsorship for this role. Do not apply for this role if you will need Entegris immigration sponsorship (e.g., H1B, TN, STEM OPT, etc.) now or in the future.

At Entegris we are committed to providing equal opportunity to all employees and applicants. Our policy is to recruit, hire, train, and reward employees for their individual abilities, achievements, and experience without regard to race, color, religion, sexual orientation, age, national origin, disability, marital or military status.

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